Dec 17 11:24:21.497 INFO checking yishn/Kalk against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 11:24:21.497 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/yishn/Kalk:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:24:22.098 INFO [stdout] f489c4913eabebb226b56962ce4bb173a91dbe232f15c8f056c4b0daab4e96f0
Dec 17 11:24:22.100 INFO running `"docker" "start" "-a" "f489c4913eabebb226b56962ce4bb173a91dbe232f15c8f056c4b0daab4e96f0"`
Dec 17 11:24:24.220 INFO [stderr]    Compiling pest v1.0.6
Dec 17 11:24:24.220 INFO [stderr]    Compiling syn v0.11.11
Dec 17 11:24:31.123 INFO [stderr]    Compiling pest_derive v1.0.7
Dec 17 11:24:37.441 INFO [stderr]     Checking kalk v0.1.0 (/opt/crater/workdir)
Dec 17 11:24:38.952 INFO [stderr] warning: method is never used: `new_finite`
Dec 17 11:24:38.952 INFO [stderr]    --> src/types.rs:208:5
Dec 17 11:24:38.952 INFO [stderr]     |
Dec 17 11:24:38.952 INFO [stderr] 208 |     fn new_finite(start: f64, step: f64, stop: f64) -> ArithmeticProgression {
Dec 17 11:24:38.952 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:24:38.952 INFO [stderr]     |
Dec 17 11:24:38.952 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 11:24:38.952 INFO [stderr] 
Dec 17 11:24:38.952 INFO [stderr] warning: method is never used: `new_infinite`
Dec 17 11:24:38.952 INFO [stderr]    --> src/types.rs:212:5
Dec 17 11:24:38.952 INFO [stderr]     |
Dec 17 11:24:38.952 INFO [stderr] 212 |     fn new_infinite(start: f64, step: f64) -> ArithmeticProgression {
Dec 17 11:24:38.952 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:24:38.952 INFO [stderr] 
Dec 17 11:24:39.108 INFO [stderr] warning: method is never used: `new_finite`
Dec 17 11:24:39.108 INFO [stderr]    --> src/types.rs:208:5
Dec 17 11:24:39.108 INFO [stderr]     |
Dec 17 11:24:39.108 INFO [stderr] 208 |     fn new_finite(start: f64, step: f64, stop: f64) -> ArithmeticProgression {
Dec 17 11:24:39.108 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:24:39.112 INFO [stderr]     |
Dec 17 11:24:39.112 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 17 11:24:39.112 INFO [stderr] 
Dec 17 11:24:39.112 INFO [stderr] warning: method is never used: `new_infinite`
Dec 17 11:24:39.112 INFO [stderr]    --> src/types.rs:212:5
Dec 17 11:24:39.112 INFO [stderr]     |
Dec 17 11:24:39.112 INFO [stderr] 212 |     fn new_infinite(start: f64, step: f64) -> ArithmeticProgression {
Dec 17 11:24:39.112 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:24:39.112 INFO [stderr] 
Dec 17 11:24:39.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.01s
Dec 17 11:24:40.436 INFO running `"docker" "inspect" "f489c4913eabebb226b56962ce4bb173a91dbe232f15c8f056c4b0daab4e96f0"`
Dec 17 11:24:40.787 INFO running `"docker" "rm" "-f" "f489c4913eabebb226b56962ce4bb173a91dbe232f15c8f056c4b0daab4e96f0"`
Dec 17 11:24:41.160 INFO [stdout] f489c4913eabebb226b56962ce4bb173a91dbe232f15c8f056c4b0daab4e96f0